9. Identify 3 types of barriers in the body's first line of defense. Give an example of each type of barrier. please this should be at least 150 words, I will mark as BRIANILIST. thank you. - QAmmunity.org

9. Identify 3 types of barriers in the body's first line of defense. Give an example of each type of barrier. please this should be at least 150 words, I will mark as BRIANILIST. thank you.

asked Sep 15, 2021 43.5k views

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